摘要:
This invention relates to DNA encoding a novel enzyme having activity of synthesizing D-serine from formaldehyde and glycine, recombinant DNA constructed by integrating such DNA into a vector, a transformant transformed with the recombinant DNA, and a method for producing D-serine from formaldehyde and glycine with the use of the enzyme.
摘要:
This invention relates to DNA encoding a novel enzyme having activity of synthesizing D-serine from formaldehyde and glycine, recombinant DNA constructed by integrating such DNA into a vector, a transformant transformed with the recombinant DNA, and a method for producing D-serine from formaldehyde and glycine with the use of the enzyme.
摘要:
This invention relates to DNA encoding an enzyme having activity of synthesizing D-serine from formaldehyde and glycine, recombinant DNA constructed by integrating such DNA into a vector, a transformant transformed with the recombinant DNA, and a method for producing D-serine from formaldehyde and glycine with the use of the enzyme.
摘要:
This invention relates to DNA encoding a novel enzyme having activity of synthesizing D-serine from formaldehyde and glycine, recombinant DNA constructed by integrating such DNA into a vector, a transformant transformed with the recombinant DNA, and a method for producing D-serine from formaldehyde and glycine with the use of the enzyme.
摘要:
A purified N-t-butoxycarbonylphenylalanine ester preparation having an enhanced optical activity can be obtained by bringing an N-t-butoxycarbonylphenylalanine ester preparation containing an optically active compound into contact with an aliphatic hydrocarbon, extracting the optically active compound with the aliphatic hydrocarbon, and recovering the optically active compound from the resulting extract.
摘要:
An alkoxybenzamide represented by the general formula (3): (wherein R1, R2, R3, R4, and R5 independently indicate a hydrogen atom, an alkyl group having one to six carbon atoms, or an alkoxy group having one to six carbon atoms; if R3 indicates a hydrogen atom or an alkyl group having one to six carbon atoms, R1 indicates an alkoxy group having one to six carbon atoms and R4 indicates an alkyl or alkoxy group having one to six carbon atoms; two adjacent substituents may be coupled with a cross-linking group to form a ring; R6 indicates a heteroaromatic ring; and A indicates an oxygen atom or a sulfur atom) is produced by reacting an alkoxybenzene represented by the general formula (1): (wherein R1, R2, R3, R4, and R5 are defined above) with an isocyanate represented by the general formula (2): (wherein R6 and A are defined above; and n indicates 1 or 2) in the presence of a Lewis acid. Among isocyanates represented by the general formula (2) is a thiazolyl isocyanate represented by the general formula (5): (wherein R1 indicates a hydrogen atom, a saturated or unsaturated alkyl group having one to six carbon atoms, a haloalkyl group having one to six carbon atoms, an alkoxy group having one to six carbon atoms, an alkoxycarbonyl group, or an acyl group; R2 indicates a hydrogen atom, a halogen atom, a saturated or unsaturated alkyl group having one to six carbon atoms, a haloalkyl group having one to six carbon atoms, an alkoxycarbonyl group having one to six carbon atoms, an acyl group, or a substituted or unsubstituted phenyl group; both R1 and R2 do not indicate a hydrogen atom; and n indicates 1 or 2). This thiazolyl isocyanate is produced from two precursors: an aminothiazole and a carbonyl halide. The present invention can provide a method for producing a high yield of alkoxybenzamide with fewer steps, and can also provide thiazolyl isocyanates, which are useful in the production of ureas, carbamates, and aromatic amides having a thiazole ring.